package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.models.auth.In;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品管理")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 新增菜品及其口味
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation("菜品新增")
    public Result save(@RequestBody DishDTO dishDTO){
        log.info("菜品新增");
        dishService.save(dishDTO);
        //精确删除某一个key
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);
        return Result.success();
    }

    /**
     * 分页查询菜品
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("分页查询菜品")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("分页查询菜品");
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 批量删除菜品
     * @param ids
     * @return
     */
    @DeleteMapping("")
    @ApiOperation("批量删除菜品")
    public Result delete(@RequestParam List<Long> ids){
        log.info("批量删除菜品,菜品id：{}",ids);
        dishService.deleteBatch(ids);
        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 根据id查询菜品
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getById(@PathVariable Long id){
        log.info("查询菜品，id：{}",id);
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("菜品修改")
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("菜品修改,{}",dishDTO);
        dishService.update(dishDTO);
        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     *  根据分类id查询所有菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询所有菜品")
    public Result<List<Dish>> getByCategoryId(Long categoryId) {
        log.info("根据分类id查询菜品，分类id：{}", categoryId);
        List<Dish> list = dishService.getByCategoryId(categoryId);
        return Result.success(list);
    }

    /**
     * 设置菜品起售/停售
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    public Result setStartOrStop(@PathVariable Integer status, Long id){
        log.info("修改菜品状态，id：{}，状态：{}",id,status == 1 ? "起售" : "停售");
        dishService.setStartOrStop(status,id);
        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     *清理缓存数据
     * @param pattern
     */
    private void cleanCache(String pattern){
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
